Pavao Ritter Vitezović (1652. – 1713.) was a Croatian writer, historian, politician, lexicographer, copper engraver and a descendant of an old noble family from Alsace. In the 1980s, his political and literary career began. He was a participant and representative of the city of Senj at the conference in Šopron and Požun. After the peace treaty in Srijemski Karlovci (1699.), with count Marsigli, he participated in the commission for delimitation with the Republic of Venice and the Ottoman Empire. He wrote his literary works in Latin and Croatian languages, and they are supported by the sources of Constantine Porphyrogenitus, Ivan Lučić, Mavro Orbini, Toma Arhiđakon and others. His earliest books were printed in Vienna and Linz. In 1695, he founded a Croatian national printing office in Zagreb, and thus he began his printing activity in his own country. His most famous book in Latin is the programmatic document Croatia Rediviva - Revived Croatia (1700.).The book discusses the problem of Croatian name, language, origin and Croatian borders. Other important works in Latin are Stemmathografia (1701.) and Plorantis Croatiae saecula duo - Two centuries of Croatia in mourning(1703.). His most important works in Croatian language are Kronika aliti spomen svega svita vikov (1696.) and the poem Odiljenje Sigetsko (1684.). The poem was written as a reaction after the death of Nikola Šubić Zrinski at the foot of the Siget fortress (1566.) and a critique of the executions of Fran Krsto Frankopan and Petar Zrinski in Wiener Neustadt (1671.). Vitezović made an indelible impressionon the development of Croatian orthography. In 1700, his dictionary Lexicon Latino-Illyricum was published, in which he advocated the use of diacritical marks and for the idea that each phoneme should have its own grapheme (one voice - one sign).Thanks to his literary and political activities and because of his work on Croatian orthography and pancroatist ideas, Pavao Ritter Vitezović can be considered an important national thinker and a fore runner of Croatian national ideology and the national movement of the 19th century.